HEAT CONDUCTIVE PIPE FITTED WITH INNER FACE GROOVE AND PIPE EXPANSION METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a heat conductive pipe fitted with an inner face groove, where the pipe expansion processing can be performed with high reliability and besides which can exhibit high heat exchange performance after pipe expansion. SOLUTION: For this heat conductive pipe 1 fitted wit...

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Bibliographische Detailangaben
Hauptverfasser:	FUKATAMI TAKAO, KOUCHI TETSUYA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEATING LIGHTING MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WEAPONS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a heat conductive pipe fitted with an inner face groove, where the pipe expansion processing can be performed with high reliability and besides which can exhibit high heat exchange performance after pipe expansion. SOLUTION: For this heat conductive pipe 1 fitted with an inner face groove, many fins 2 projecting from the inside peripheral face are made at the inside peripheral face of a metal pipe, and inclines 2C which come close to the inside peripheral face of a metallic pipe as they go to one end side of the metal pipe are made at the tops of these fins. The angle that the incline 2C and the normal of the inside peripheral face of the metal pipe form is 30-70 deg., and the angles that the side walls 2A and 2B on both sides of the fin and the normals of the inside peripheral face of the metallic pipe form are 5-15 deg. respectively.